Implement up smash, dacus and further improve input system. (#88)

Reviewed-on: #88
Co-authored-by: Álex Román Núñez <eirexe@eirteam.moe>

src/input/gamepad.rs

@@ -9,6 +9,7 @@ use crate::math::vec::FGVec2;
 pub fn sample_gamepad(pad: &Gamepad, input_map: &BaseInputMap) -> FighterInputFrame {
     let mut input_frame = FighterInputFrame::default();
     let mut movement = Vec2::ZERO;
+    let mut directional_attack = Vec2::ZERO;
 
     for gamepad_element in &input_map.gamepad {
         match &gamepad_element.binding {
@@ -34,12 +35,24 @@ pub fn sample_gamepad(pad: &Gamepad, input_map: &BaseInputMap) -> FighterInputFr
                             movement.y += sign as f32
                         }
                     }
+                    InputMapAction::AttackXDir(sign) => {
+                        if pressed {
+                            directional_attack.x += sign as f32;
+                        }
+                    }
+                    InputMapAction::AttackYDir(sign) => {
+                        if pressed {
+                            directional_attack.y += sign as f32;
+                        }
+                    }
                 }
             }
             // gamepad does not have a separate axis for left and right, so sign here should be 1
             GamepadBinding::Axis(axis, sign) => {
                 let value = pad.get(*axis).unwrap_or(0.0) * (*sign as f32);
                 match gamepad_element.action {
+                    InputMapAction::AttackXDir(_) => directional_attack.x += value,
+                    InputMapAction::AttackYDir(_) => directional_attack.y += value,
                     InputMapAction::MovementXDir(_) => movement.x += value,
                     InputMapAction::MovementYDir(_) => movement.y += value,
                     _ => {}
@@ -49,6 +62,10 @@ pub fn sample_gamepad(pad: &Gamepad, input_map: &BaseInputMap) -> FighterInputFr
     }
 
     input_frame.movement = FGVec2::new(FGi32::from_num(movement.x), FGi32::from_num(movement.y));
+    input_frame.directional_attack = FGVec2::new(
+        FGi32::from_num(directional_attack.x),
+        FGi32::from_num(directional_attack.y),
+    );
 
     input_frame
 }